Take The Pledge

" I <your name... or anonymous> pledge to give <amount> to <charity name>"

... and then type that phrase in an email (with the blanks filled out!) and send to sceneonerichmond @ gmail.com

Make sure you actually send your chosen charity the amount of money you pledged, or you would be lying, which would be dishonest. The address to send money to is on each charity's website, and in some cases, you can use your credit card to donate over the internet.